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Alternative 4: No-Project No transportation or circulation impacts would occur. Mitigation Measure 4.4-1a (Alternative 1) Reconstruct Bird Road from the proposed project access to SR 132 and provide a 32-foot paved roadway surface with 50 feet of right of way according to County of San Joaquin typical rural road sections. The Koster Road bridge across the Delta Mendota Canal shall also be reconstructed to provide a 32-foot wide roadway surface. The improvement plans and specifications shall be prepared by a registered civil or structural engineer and shall be subject to approval by the Department of Public Works. f Truck traffic shall be prohibited on Blewett Road east of the Teichert Aggregates quarry access, or as an alternative, Blewett Road shall be reconstructed to provide a 32-foot paved roadway surface with 50 feet of right of way according to County of San Joaquin typical rural road sections for the portions of Blewett Road the proponent proposes to use. All bridges along such routes shall be certified as sufficient by a registered structural engineer, or shall be upgraded to accommodate anticipated loads and to provide a 32-foot wide roadway surface. Improvement plans and specifications shall be prepared by a registered civil or structural engineer` and shall be subject to approval by the Department of Public Works. A video tape of road conditions shall be prepared for all haul routes between the project site access and SR 132. The condition of the haul routes shall be reviewed with the County Public Works Department every five years. A Maintenance Agreement shall be executed with the County to ensure repair of haul routes on County Roads between the project site access and SR 132. The Maintenance Agreement shall require a bond or cash deposit in an amount deemed acceptable to Public Works, and shall be renewed every five years for the life of the project. The proponent shall pay a traffic impact mitigation fee based on the average daily trip-ends for the life expectancy of the project. Level of Significance After Mitigation: Implementation of Mitigation Measure 4.4-1 a would reduce Alternative 1's effect on roadway structural sections and bridges to a less-than-significant level. Mitigation Measure 4.4-1b (Alternative 2) Blewett Road shall be reconstructed to provide a 32-foot paved roadway surface with 50 feet of right of way according to County of San Joaquin typical rural road sections for the portions of Blewett Road the proponent proposes to use. All bridges along such routes shall be certified as sufficient by a registered structural Draft Environmental Impact Report 4-48 ER-96-3